I think I mentioned this before, but Exiles
has 7 visual tiers for each piece of loot. As a piece of equipment levels up, it not only increases in power and effect, but in visual visualiness as well. Take a look at the a couple of the swords that we're designing to get a feel.
(bonus item that I will explain in the next Dev Update: we've moved to handpainted textures on the equipment, because-- well-- they look more magickal)